Turning plug.



C. F. WRAY.

TURNING PLUG.

APPLICATION FILED FEB. 16. 1914.

LQQQ W1 c. Patented Apr. 10,1917.

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TURNING PLUG APPLICATION FILED FEB.16.I914. 1%92, W1 0 Patented Apr. 10, 1917.

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II III W Illll IIIIWTIIIIWIHHIIIIIIIHHIE f Ir Uzaries "pairs s ratus PATENT CHARLES F. WRAY, 0F RGCEESTER, NEW YORK, ASSIGNOR TO NATIQNAL BRASS MANU- FACTURING 00., 0F RGCHESTER, NEW YORK, A. CORPGRATION OF NEW YORK.

TURNING PLUG.

Mann-m Specification of Letters Patent.

Patented Apr. it), 1917.

To all whom it may concern:

Be it known that I, CHARLES F. WRAY, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Turning Plugs; and I do hereby declare the folio. ing to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon.

My invention relates to improvements in turning plugs, and it has for its object more particularly to provide an improved valve of the type used in conjunction with milk dispensing cans and the like where the'charactor of the material requires the valve to be frequently washed and cleaned. A further object of my invention consists in providing a structure that enables the plug to be quickly removed from operative engagement with the valve body, and which while in place is retained tightly in operative position and enables the liquid supply to be controlled as effectively as with the usual valve. To these and other ends the invention consists in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings:

Figure 1 is a view in side elevation of a turning plug embodying one form of my invention;

Fig. 2 is a front elevation of the same;

Fig. 3 is a sectional view on the line Zi -3 of Fig. 1;

Fig. 4 is a perspective view of the locking member;

Fig. 5 is a horizontal sectional view, on the line 5 5 of Fig. 3;

Fig. 6 is a sectional view of a modified form;

Fig. 7 is a similar view with the locking member removed and showing the springcontrolled follower in its lowermost position;

Fig. 8 is a transverse sectional view on line 88 of Fig. 6;

Fig. 9 is a vertical sectional View of still another modified form;

Fig. 10 is a transverse sectional view on the line 10 10 of Fig. 9; and

Fig. 11 is a sectional view of a modification.

Similar reference numerals throughout the several figures indicate the same parts.

In the present embodiment of the invention A designates the valve body such as is employed in the usual type of turning plu while B designates the plug or valve a;- ranged within the body and provided with the handle C by which it may be operated. lhe plug 13 is provided with a reduced portion D at its lower end, which is preferably formed separate from the upper portion of the valve plug and engages a threaded post it thereon. The lower reduced portion D is provided with a shoulder F, formed by an enlarged head, for a purpose that will presently appear.

The plug is held in operative relation to the valve body by means of a locking inember, preferably in the form of a disk such as indicated at G and adapted to abut against the lower edge of the valve body as shown in Fig. 3. The locking member is slotted or cut-away at H from its center to the periphery so as to engage the reduced portion of the plug, and its upper edge is preferably beveled at points adjacent said slot, as indicated at a, to facilitate insertmg 1t between the valve body and follower, which I am about to describe. The locking member is held yieldably against the valve body by means arranged on the valve plug which acts to retain the locking member with sufficient force to hold the plug securely against accidental displacement. The means for holding the locking disk G preferably consists of a spring actuated follower arranged on the reduced lower portion of the valve plug and in the present embodiment embodying a collar designated at I and provided with an interiorly arranged flange J near or at its upper edge. The collar I is held up in engagement with the locking disk by means of the spring K which is arranged between the collar and the reduced portion of the plug, abutting the before mentioned shoulder F at one end and the lower surface of the flange J at its opposite end. In order to remove the plug from the valve body, the locking disk G is forced out of engagement with the collar 1, suiiicient pressure being applied to overcome the tension of the spring K, and to reassemble the parts, it is only necessary to hold the collar I down, compressing the spring K, until the locking disk G can be positioned. The locking disk is preferably provided with a recessed portion N in its under face, adapted to engage the upper edge of the follower or collar I, and which serves to hold the disk in tighter engagement with the collar.

It may be desirable to afford means for automatically retaining the collar I in its lowermost position, in order to facilitate the positioning of the locking disk, and to provide for this, I may form a cam surface L upon the upper edge of a flange L arranged interiorly of the collar as shown in the modified form of Figs. 6 to 8, the portion D of the plug being provided with a horizontally arranged pin affording a pair of projections M which cooperate with said cam surface, to force the collar downwardly upon the plug as it is turned, and to hold it in such position against the action of the spring.

As a modification of the arrangement which I have just described, I may employ the construction shown in Figs. 9 and 10, V

in which the flange U is provided with cam surfaces P of limited extent for cooperation with the projections Q, on the plug. cam surfaces are determined by shoulders or stop portions If, and are of sufficient inclination to cause the collar to be automatically returned to its normal position by the spring S, when released. The operation in this case is the same as that which has already been described except that no manual operation is required to return the collar to its normal position.

Instead of forming a recess in the under face of the locking disk, to cooperate with the follower, I may construct it with an upstanding central portion on its upper face, designated at T, which is arranged to engage a corresponding recess in the valve body as shown in Fig. 11.

V Other changes and modifications may be had from the structures which are disclosed The in the present application, without departing from the essential features of the invention, and I intend to cover in thepresent application any such forms of'constru'ction as may come within the spirit of my im-. provement, and the scope of the claims hereinafter.

. I claim as my invention:

1. The combination with a valve body, of a rotary plug having a reduced lower end, a removable locking disk slotted to engage said reduced end of the plug and adapted to be positioned against the valve body, said disk being recessed on its under surface, and a collar yieldably supported on said reduced end of the plug and adapted to engage the recessed portion of the looking disk.

2. The combination with a valve body, of a rotary plug having a reduced lower end, a removable locking disk slotted to engage said reduced end of the plug and adapted to be positioned adjacent to the valve body, said disk being recessed on its under surface, a shoulder on the end of the reduced portion of the plug, a collar arran ed on the plug above said shoulder and having an interiorly disposed flange near its top, a spring positioned between said.

shoulder on the plug and the flange on the collar, a cam surface formed on the upper face of said flange, and a projection on the plug adapted to engage said cam surface.

8. The combination Witha valve body, of a rotary plug, a locking plate having a slot extending from its edge for engagement with the plug and removably disposed against the valve body and between it and one end of the plug, a collar movably -mounted on the plug having engagement with said locking plate, and a spring surrounding the plug 1n engagement with and actuating said collar.

CHARLES F. WRAY.

Witnesses:

G. WJLLAR RICH, H. E. STONEBRAKER.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

